박막과 음장의 연성에 의한 저주파 소음 저감Low Frequency Noise Reduction by Acoustic Coupling with Membrane

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When a membrane couples with compressive fluid, waves on the membrane follow a typical dispersion relations. One of characteristics of this relations is that evanscent waves occur below cutoff frequency. We have attempt to use this spatially decaying characteristics as a low frequency sound absorber. Theoretical development has required to solve membrane-fluid coupled linear differential. The solution has been successfully obtained by using eigenfunctions. To assure the obtained solution, experiment was also performed. The comparison was quite satisfactory. We conclude, based on these theoretical as well as experimental evidences, that it is very likely possible to use a membrane as a low frquency sound control element.
Publisher
한국소음진동공학회
Issue Date
1997-04
Language
Korean
Citation

한국소음진동공학회논문집, v.7, no.4, pp.579 - 588

ISSN
1598-2785
URI
http://hdl.handle.net/10203/76730
Appears in Collection
ME-Journal Papers(저널논문)
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